RIOMET Drug Patent Profile
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Which patents cover Riomet, and what generic alternatives are available?
Riomet is a drug marketed by Ranbaxy and Sun Pharm and is included in two NDAs. There is one patent protecting this drug and one Paragraph IV challenge.
The generic ingredient in RIOMET is metformin hydrochloride. There are forty-nine drug master file entries for this compound. Eighty-eight suppliers are listed for this compound. Additional details are available on the metformin hydrochloride profile page.
DrugPatentWatch® Litigation and Generic Entry Outlook for Riomet
A generic version of RIOMET was approved as metformin hydrochloride by ATLAS PHARMS LLC on January 24th, 2002.
Summary for RIOMET
US Patents: | 0 |
Applicants: | 2 |
NDAs: | 2 |
Finished Product Suppliers / Packagers: | 1 |
Raw Ingredient (Bulk) Api Vendors: | 164 |
Clinical Trials: | 40 |
Patent Applications: | 680 |
Formulation / Manufacturing: | see details |
Drug Prices: | Drug price information for RIOMET |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for RIOMET |
What excipients (inactive ingredients) are in RIOMET? | RIOMET excipients list |
DailyMed Link: | RIOMET at DailyMed |



Recent Clinical Trials for RIOMET
Identify potential brand extensions & 505(b)(2) entrants
Sponsor | Phase |
---|---|
National Institutes of Health (NIH) | Early Phase 1 |
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Early Phase 1 |
Washington State University | Early Phase 1 |
Pharmacology for RIOMET
Drug Class | Biguanide |
Anatomical Therapeutic Chemical (ATC) Classes for RIOMET
Paragraph IV (Patent) Challenges for RIOMET
Tradename | Dosage | Ingredient | Strength | NDA | ANDAs Submitted | Submissiondate |
---|---|---|---|---|---|---|
RIOMET | Oral Solution | metformin hydrochloride | 500 mg/5 mL | 021591 | 1 | 2018-02-02 |
US Patents and Regulatory Information for RIOMET
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Exclusivity Expiration |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ranbaxy | RIOMET | metformin hydrochloride | SOLUTION;ORAL | 021591-001 | Sep 11, 2003 | DISCN | Yes | No | ⤷ Try a Trial | ⤷ Try a Trial | ⤷ Try a Trial | ||||
Sun Pharm | RIOMET ER | metformin hydrochloride | FOR SUSPENSION, EXTENDED RELEASE;ORAL | 212595-001 | Aug 29, 2019 | DISCN | Yes | No | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | |||
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Exclusivity Expiration |
Expired US Patents for RIOMET
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | Patent No. | Patent Expiration |
---|---|---|---|---|---|---|---|
Ranbaxy | RIOMET | metformin hydrochloride | SOLUTION;ORAL | 021591-001 | Sep 11, 2003 | ⤷ Try a Trial | ⤷ Try a Trial |
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >Patent No. | >Patent Expiration |
International Patents for RIOMET
See the table below for patents covering RIOMET around the world.
Country | Patent Number | Title | Estimated Expiration |
---|---|---|---|
Iceland | 6709 | ⤷ Try a Trial | |
Poland | 365135 | ⤷ Try a Trial | |
Brazil | 0113102 | ⤷ Try a Trial | |
China | 1635881 | ⤷ Try a Trial | |
>Country | >Patent Number | >Title | >Estimated Expiration |
Supplementary Protection Certificates for RIOMET
Patent Number | Supplementary Protection Certificate | SPC Country | SPC Expiration | SPC Description |
---|---|---|---|---|
1261586 | 132012902044560 | Italy | ⤷ Try a Trial | PRODUCT NAME: SAXAGLIPTIN E METFORMINA(KOMBOGLYZE); AUTHORISATION NUMBER(S) AND DATE(S): DA EU/1/11/731/001 A EU/1/11/731/014, 20111124 |
1532149 | PA2012022 | Lithuania | ⤷ Try a Trial | PRODUCT NAME: LINAGLIPTINUM + METFORMINI HYDROCHLORIDUM; REGISTRATION NO/DATE: EU/1/12/780/001 - EU/1/12/780/034 20120720 |
1506211 | C01506211/02 | Switzerland | ⤷ Try a Trial | PRODUCT NAME: DAPAGLIFLOZIN + METFORMIN; REGISTRATION NO/DATE: SWISSMEDIC 65377 16.07.2015 |
2498758 | CA 2020 00017 | Denmark | ⤷ Try a Trial | PRODUCT NAME: METFORMIN ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF; SAXAGLIPTIN ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF; DAPAGLIFLOZIN ELLER ET FARMACEUTISK ACCEPTABELT SOLVAT DERAF; REG. NO/DATE: EU/1/19/1401 20191113 |
>Patent Number | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration | >SPC Description |